This would imply that a farmer cares about his reputation. If one starts to openly engage in farming to max his ROI, then nothing matters to him anymore. We even think that having them farm late is better, since we do not have to see them trending and pollute the landing page.
It is not ideal, but this something that we will have to live with since reward regulation is absent.
We actually remember a proposition that was suggested in the past that could help with farming a bit without reward regulation. Will make sure to present it when the time comes.